Method for capturing attitude information of virtual reality device
A technology of posture information and virtual reality, applied in the input/output process of data processing, input/output of user/computer interaction, instruments, etc. Realize the problems of equipment information security, which is not conducive to the expansion of equipment functions, etc., so as to reduce the delay of packaging and unpacking, ensure the integrity and correctness, and achieve the effect of fast transmission
Inactive Publication Date: 2017-05-10
SHANGHAI CHAI MING HUANG INFORMATION TECH CO LTD
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Problems solved by technology
[0006] 1. Full-speed USB devices limit the maximum data packet length that can be transmitted to 64 bytes. Without defining additional data packet headers and tails, it cannot support data transmission of a single data packet exceeding 64 bytes, which is not conducive to the device function extension;
[0007] 2. For users with programming foundation, even if they do not pass the communication protocol of the lower computer, they can still control the lower computer abnormally through the control transmission interface in the WindowsHID user application interface (API), which is not conducive to the information security of virtual reality equipment
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[0031] As mentioned in the background art, the prior art method for capturing attitude information of a virtual reality head-mounted display device still has problems such as long time delay and low security in practical applications.
[0032] The technical solution of the present invention is to pack the IMU data read by the driver through the private protocol defined by the method of the present invention; to transmit the data packaged by batch transmission; to transmit the data packets received by the receiving end according to the private protocol The protocol definition performs data unpacking. Especially in the case of a large amount of data, the method of the invention significantly reduces the delay and improves the security of the data.
[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying dra...
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The invention relates to a method for capturing attitude information of a virtual reality device. The method is characterized in that a private packet encapsulation protocol is defined so that the packet size can be larger than 64 bytes, that data check bits are added to the packet encapsulation protocol, that data transmission is carried out in a bulk transfer mode to support greater data bandwidth, and that driver programs need to be installed before a virtual reality device and a full-speed USB device being used. The method has the advantages that the capture delay of the attitude information of the virtual reality device is reduced by the adoption of the method, the uplink and downlink safety of the attitude information is ensured, and the extendibility of a communication protocol is also taken into account.
Description
technical field [0001] The invention relates to a method for capturing posture information of a virtual reality device, in particular to a method for capturing posture information of a virtual reality device with ultra-low delay and high information security. Background technique [0002] In order to create a sense of immersion in virtual reality and enhance the interaction between man and machine, it is necessary to obtain the current attitude information of the virtual reality head-mounted display device in real time, such as the direction of rotation and angle of rotation of the device, to adjust the display content. Attitude information acquisition generally uses the IMU chip (Inertial Measurement Unit, inertial measurement unit), which usually includes a three-axis accelerometer and a three-axis gyroscope. The accelerometer measures the acceleration signal of the object in three-dimensional space, and the gyroscope measures The angular velocity of the object in three-di...
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IPC IPC(8): G06F3/01G06F13/38
CPCG06F3/011G06F13/385
Inventor 谈家梁黄柴铭陈玉琨
Owner SHANGHAI CHAI MING HUANG INFORMATION TECH CO LTD